1021352222140 has 24 divisors (see below), whose sum is σ = 2153813901120. Its totient is φ = 406831510848.

The previous prime is 1021352222117. The next prime is 1021352222153. The reversal of 1021352222140 is 412222531201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106831227 + ... + 106840786.

It is an arithmetic number, because the mean of its divisors is an integer number (89742245880).

Almost surely, 2^{1021352222140} is an apocalyptic number.

1021352222140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1021352222140 is an abundant number, since it is smaller than the sum of its proper divisors (1132461678980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1021352222140 is a wasteful number, since it uses less digits than its factorization.

1021352222140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213672261 (or 213672259 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 1021352222140 its reverse (412222531201), we get a palindrome (1433574753341).

The spelling of 1021352222140 in words is "one trillion, twenty-one billion, three hundred fifty-two million, two hundred twenty-two thousand, one hundred forty".